$ git clone -n https://gitee.com/src-opencloudos-rpms/libmicrodns.git /var/lib/mock/dist-oc9-build-42331-14591/root/chroot_tmpdir/scmroot/libmicrodns
Cloning into '/var/lib/mock/dist-oc9-build-42331-14591/root/chroot_tmpdir/scmroot/libmicrodns'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libmicrodns
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 914786c import libmicrodns-0.2.0-3.tl4